The Nigeria international unwittingly flicked the ball past his own goalkeeper David Ospina following a goal-bound header from Lucas Moura, a mistake which looks like it will cost Arsenal the chance of topping Group A.

Alex Iwobi | PL 2016/17 Stats

Games: 9
Goals: 0
Assists: 3
Shots: 13
Shots on target: 2

After making a sensational breakthrough last season, Iwobi has struggled to rediscover his best form in recent weeks, illustrated by his failure to score in any of his 15 appearances in all competitions this term, and his manger concedes the 20-year-old found his latest setback difficult to take.

‘Look, it can happen. The frustrating thing I think is that Ospina was behind him,’ he said.